## Brain Teaser – What was the day?

What was the day of the week on 28th May, 2006?

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1. ANIL KUMAR says:

@kavita
bt how 2000 has 0 odd days???????

2. kavita says:

before u gonna ask d how i will xplai..;)
as every year divisible by 4 is a leap year,bt it should not b a century year..
so if v take 100 years ,100 years will have 76 ordinary year and 24 leap year.
and no of odd days is d no of days which not form a complete year.
ordinary days has 1 odd day n leap year has 2 odd days..
so in 100 years (76*1+24*2)=124 odd days
bt if 124/7,we get remainder 5 i.e 5 odd days
so no of odd days in 400 years is 4*5+1=21..i.e 0 odd days
similary no of odd days in 800,1200,1600,2000 years is 0.
now 2006 can broken into 2000+5 years+31+28+31+30+28(of d month may)
2000 has 0 odd days
5 years has 1*4+2(of leap year)=6 odd days(means
now 31+28+30+28=158 days
148/7=remaindr 1…i.e 1 odd day
now total 7 odd days i.e 0 odd day =sunday acc to the table
0 odd day=sun
1=mon..nd so on

• Rishabh Dev says:

Awesome!

3. kavita says:

28 may 2006 is sunday..:)